Bralorne Resources Limited
16Patents
0Active
16Granted
32Portfolio score
Filing activity: May 1, 1975 → Apr 11, 1990
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4192155A | Floating cushion sub | Fixed Constructions | 43 | Expired |
| US3982594A | Eccentric stabilizer | Fixed Constructions | 19 | Expired |
| US4537386A | Engine shutdown valve | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4391152A | Sampler | Physics | 17 | Expired |
| US4593914A | Wellhead sealing system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4494778A | Casing hanger | Fixed Constructions | 13 | Expired |
| US4215845A | Engine air cut-off device | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4703812A | Mobile drilling apparatus | Fixed Constructions | 12 | Expired |
| US4759738A | Floating cushion sub | Fixed Constructions | 12 | Expired |
| US3947044A | Secondary sealing device | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4285494A | Engine air cut-off device | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4478284A | Jar tool | Fixed Constructions | 8 | Expired |
| US3951470A | Drill steel idler guide | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5070900A | Safety valve actuator assembly | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4961560A | Two way latching trip valve | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4658917A | Enclosed jar tool | Fixed Constructions | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.